I made the game start over from the level you're on so that you have more time to get used to the layout of the levels, otherwise you'd only reach certain levels with nearly no health left, and the idea is to learn them all and kinda 'loop' for as long as you can. But I do need to look into whether that's particularly user friendly.
Also, the video was the easy bit! I work from home and have a lot of 'downtime' so I just edited it together inbetween doing my day job.
Thanks for playing!